Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Hydrothermal reactivity of neutron absorber composites

Journal Article · · Journal of Nuclear Materials
 [1];  [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
+ Show Author Affiliations
The stability of neutron absorber composite materials at hydrothermal conditions was tested in a series of two-week experiments to mimic spent nuclear fuel disposal. Coupons, composed of boron carbide (B4C) sintered with and encased in aluminum, were increasingly altered in experiments at 150, 230, and 300 °C and pressures of 150 bar. Alteration of aluminum to boehmite (γ-AlO(OH)) and hydrogen gas generation occurred over the range of investigated temperatures, but is most significant at 300 °C. We found that the formation of boron-bearing mineral phases was not detected; however, aqueous boron was present in the reaction fluids.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1810371
Alternate ID(s):
OSTI ID: 1598051
Report Number(s):
LA-UR--19-32409; SAND--2021-7953J; 697223
Journal Information:
Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Vol. 531; ISSN 0022-3115
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (2)

Experimental investigaiion of corrosion rates and mechanisms in Boral journal January 1985
The Need for Integrating the Back End of the Nuclear Fuel Cycle in the United States of America journal January 2018

Similar Records

Direct Disposal of Dual Purpose Canisters – LANL – Boral Solubility (FY19)
Technical Report · Tue Jul 30 00:00:00 EDT 2019 · OSTI ID:1544664
Hydrothermal alumina-rich clays and boehmite on the Gorda Ridge
Journal Article · Thu Sep 01 00:00:00 EDT 1988 · Geochimica et Cosmochimica Acta; (USA) · OSTI ID:5327414
Burnable neutron absorbers
Patent · Tue Jun 11 00:00:00 EDT 1985 · OSTI ID:6403081

Related Subjects

36 MATERIALS SCIENCE
boehmite
dual-purpose canister
hydrothermal
neutron absorber composite materials
repository